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12501012030 = 23513374320147
BaseRepresentation
bin10111010010001111…
…00100111000111110
31012021012212012122120
423221013210320332
5201100224341110
65424244023410
7621533564133
oct135107447076
935235765576
1012501012030
11533554a401
12250a691b66
131242bb2450
1486839858a
154d2738870
hex2e91e4e3e

12501012030 has 128 divisors (see below), whose sum is σ = 33956955648. Its totient is φ = 2924232192.

The previous prime is 12501012011. The next prime is 12501012037. The reversal of 12501012030 is 3021010521.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12501012037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 610417 + ... + 630563.

It is an arithmetic number, because the mean of its divisors is an integer number (265288716).

Almost surely, 212501012030 is an apocalyptic number.

12501012030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12501012030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16978477824).

12501012030 is an abundant number, since it is smaller than the sum of its proper divisors (21455943618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12501012030 is a wasteful number, since it uses less digits than its factorization.

12501012030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20250.

The product of its (nonzero) digits is 60, while the sum is 15.

Adding to 12501012030 its reverse (3021010521), we get a palindrome (15522022551).

The spelling of 12501012030 in words is "twelve billion, five hundred one million, twelve thousand, thirty".

Divisors: 1 2 3 5 6 10 13 15 26 30 37 39 43 65 74 78 86 111 129 130 185 195 215 222 258 370 390 430 481 555 559 645 962 1110 1118 1290 1443 1591 1677 2405 2795 2886 3182 3354 4773 4810 5590 7215 7955 8385 9546 14430 15910 16770 20147 20683 23865 40294 41366 47730 60441 62049 100735 103415 120882 124098 201470 206830 261911 302205 310245 523822 604410 620490 745439 785733 866321 1309555 1490878 1571466 1732642 2236317 2598963 2619110 3727195 3928665 4331605 4472634 5197926 7454390 7857330 8663210 9690707 11181585 11262173 12994815 19381414 22363170 22524346 25989630 29072121 32053877 33786519 48453535 56310865 58144242 64107754 67573038 96161631 96907070 112621730 145360605 160269385 168932595 192323262 290721210 320538770 337865190 416700401 480808155 833400802 961616310 1250101203 2083502005 2500202406 4167004010 6250506015 12501012030